ABAP Select data from SAP table SEPMRACPOAPVANA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP SEPMRACPOAPVANA table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to SEPMRACPOAPVANA. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the SEPMRACPOAPVANA table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_SEPMRACPOAPVANA TYPE STANDARD TABLE OF SEPMRACPOAPVANA,
      WA_SEPMRACPOAPVANA TYPE SEPMRACPOAPVANA,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <SEPMRACPOAPVANA> TYPE SEPMRACPOAPVANA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_SEPMRACPOAPVANA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM SEPMRACPOAPVANA
  INTO TABLE IT_SEPMRACPOAPVANA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SEPMRACPOAPVANA
*  INTO TABLE @DATA(IT_SEPMRACPOAPVANA2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_SEPMRACPOAPVANA INDEX 1 INTO DATA(WA_SEPMRACPOAPVANA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_SEPMRACPOAPVANA ASSIGNING <SEPMRACPOAPVANA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SEPMRACPOAPVANA>-MANDT = 1.
<SEPMRACPOAPVANA>-PURCHASEORDER = 1.
<SEPMRACPOAPVANA>-SUPPLIER = 1.
<SEPMRACPOAPVANA>-SUPPLIERT = 1.
<SEPMRACPOAPVANA>-REQUESTOR = 1.

ENDLOOP.

LOOP AT IT_SEPMRACPOAPVANA INTO WA_SEPMRACPOAPVANA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SEPMRACPOAPVANA-REQUESTORT, sy-vline,
  WA_SEPMRACPOAPVANA-CURRENCY, sy-vline,
  WA_SEPMRACPOAPVANA-CURRENCYT, sy-vline,
  WA_SEPMRACPOAPVANA-NUMBEROFITEMS, sy-vline,
  WA_SEPMRACPOAPVANA-NETAMOUNT, sy-vline,
  WA_SEPMRACPOAPVANA-EARLIESTDELIVERYDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SEPMRACPOAPVANA you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_SEPMRACPOAPVANA TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_SEPMRACPOAPVANA INTO WA_SEPMRACPOAPVANA.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPHA, internal->external for field PURCHASEORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SEPMRACPOAPVANA-PURCHASEORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SEPMRACPOAPVANA-PURCHASEORDER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SEPMRACPOAPVANA-SUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SEPMRACPOAPVANA-SUPPLIER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REQUESTOR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SEPMRACPOAPVANA-REQUESTOR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SEPMRACPOAPVANA-REQUESTOR.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_SEPMRACPOAPVANA_STR, 
MANDT TYPE STRING,
PURCHASEORDER TYPE STRING,
SUPPLIER TYPE STRING,
SUPPLIERT TYPE STRING,
REQUESTOR TYPE STRING,
REQUESTORT TYPE STRING,
CURRENCY TYPE STRING,
CURRENCYT TYPE STRING,
NUMBEROFITEMS TYPE STRING,
NETAMOUNT TYPE STRING,
EARLIESTDELIVERYDATE TYPE STRING,
LATESTDELIVERYDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SEPMRACPOAPVANA_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_SEPMRACPOAPVANA_STR-MANDT sy-vline 
WA_SEPMRACPOAPVANA_STR-PURCHASEORDER sy-vline 
WA_SEPMRACPOAPVANA_STR-SUPPLIER sy-vline 
WA_SEPMRACPOAPVANA_STR-SUPPLIERT sy-vline 
WA_SEPMRACPOAPVANA_STR-REQUESTOR sy-vline 
WA_SEPMRACPOAPVANA_STR-REQUESTORT sy-vline 
WA_SEPMRACPOAPVANA_STR-CURRENCY sy-vline 
WA_SEPMRACPOAPVANA_STR-CURRENCYT sy-vline 
WA_SEPMRACPOAPVANA_STR-NUMBEROFITEMS sy-vline 
WA_SEPMRACPOAPVANA_STR-NETAMOUNT sy-vline 
WA_SEPMRACPOAPVANA_STR-EARLIESTDELIVERYDATE sy-vline 
WA_SEPMRACPOAPVANA_STR-LATESTDELIVERYDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.